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Interim Part-Time Bookkeeper

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Onsite

Interim Part-Time Bookkeeper

UHY-US

Interim Part-Time Bookkeeper

Skills

Deltek Vision

20 days ago

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Important information


Contract type:

Freelance / Contract

Location:

St. Louis, MO, USA

Work mode:

Onsite

Published on:

8 October 2026

What they need


A great UHY client is seeking an Interim Bookkeeper . The ideal candidate will have strong AP/AR and payroll experience, percentage-of-completion accounting knowledge, and mandatory Deltek proficiency.

The Interim Bookkeeper role is a temporary position that is onsite. This is position is part time with 20-25 hours per week.

Interim Bookkeeper Responsibilities

  • Manage accounts payable, accounts receivable, payroll, and general financial record-keeping.
  • Oversee incoming and outgoing financial transactions on a recurring four-week invoicing cycle.
  • Track project time by phase and task using Deltek.
  • Prepare, review, and adjust draft project invoices in collaboration with project managers.
  • Support billing for both fixed-fee projects using percentage-of-completion methods and hourly projects.
  • Track and manage consultant and subcontractor disbursements across multiple projects, including projects with numerous specialty consultants.
  • Reconcile project billing, payments, expenses, and related financial records.
  • Manage recurring operational expenses, including rent, insurance, and vendor fees.
  • Maintain accurate and organized accounting documentation and records.
  • Identify discrepancies and resolve billing, payment, and accounting issues in a timely manner.
  • Work closely with project managers and ownership to ensure accurate and timely financial information.
  • Help streamline accounting processes and improve efficiency as the business grows.
  • Provide general administrative support as needed.
  • As the role develops, assist with minor HR administration, licensing tracking, and other operational responsibilities.

Interim Bookkeeper Requirements

  • Solid bookkeeping experience managing AP, AR, payroll, and general financial records.
  • Deltek proficiency is required.
  • Experience with project accounting and percentage-of-completion accounting.
  • Ability to manage complex consultant payments and project-related disbursements.
  • Strong attention to detail and accuracy when handling financial transactions and billing.
  • Experience with general accounting software and financial systems.
  • Highly reliable, proactive, and able to take ownership of responsibilities independently.
  • Strong communication skills and the ability to work effectively with project managers and ownership.
  • Ability to manage multiple projects, deadlines, and recurring billing cycles.
  • Experience streamlining accounting processes is preferred.
  • Willingness and ability to take on additional administrative, licensing, or minor HR responsibilities as needed.
  • Comfortable working in a small, close-knit organization where the Bookkeeper has a meaningful impact on day-to-day business operations.
  • Flexible and adaptable approach with the ability to support the role as responsibilities evolve.

UHY Advisors' Resource Solutions Group provides clients with accomplished professionals to support finance, accounting, internal audit and tax teams. Whether it is permanent placement, project work, loaned staff support or business process outsourcing–we are ready to meet your needs.

Our team has extensive experience with a wide range of clients from middle market, closely held organizations to large Fortune 500 companies. We focus on finance and accounting, internal audit, IT audit and tax. We offer direct, personal involvement from senior practitioners and strive to meet clients' needs rapidly.

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